| Company name | Reg. code |
|---|---|
| GIGAMONT OÜ | 12433081 |
| GIGAVOLT OÜ | 16244738 |
| GIGIMOT OÜ kustutatud (former name OneAutofill OÜ) | 16028992 |
| GIGAVOLT SUITES OÜ (former name LumoSpark OÜ) | 12944048 |
| GIGANT EVENTS OÜ | 17407326 |
| GRANAT GIGANT OÜ | 12847316 |
| GIGANT MÖÖBEL OÜ kustutatud | 12661882 |
| GIGANT KESKUS OÜ | 12250297 |
| GIGANT INVEST GROUP OÜ kustutatud | 12312489 |
| GIGANT KAUPLUS-LADU OÜ | 11893426 |
| NANOEXPERT OÜ (former name Gigaman OÜ) | 11158081 |
| GRAMONT OÜ | 10956900 |
| RIGMONT OÜ kustutatud | 12740529 |
| GILMONT OÜ | 10056869 |
| DIAMONT LAW OÜ | 14031263 |
| DIAMONT CONSULTING OÜ kustutatud | 14950521 |
| DIAMONT ESTONIA OÜ kustutatud | 16188497 |
| DIAMONT DELIVERY OÜ (former name Diamont OÜ) | 12504800 |
| GAGAMON DULALKANDI OÜ | 16415298 |
| DIAMONT SERVICE GROUP OÜ | 12270495 |
| DIAMONT AND CO OÜ | 14984158 |